55283242627681 has 4 divisors (see below), whose sum is σ = 55379054140612. Its totient is φ = 55187431114752.

The previous prime is 55283242627661. The next prime is 55283242627693. The reversal of 55283242627681 is 18672624238255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36299227213456 + 18984015414225 = 6024884^2 + 4357065^2 .

It is a cyclic number.

It is not a de Polignac number, because 55283242627681 - 2⁵ = 55283242627649 is a prime.

It is a super-2 number, since 2×55283242627681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55283242627601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47905755600 + ... + 47905756753.

It is an arithmetic number, because the mean of its divisors is an integer number (13844763535153).

Almost surely, 2^{55283242627681} is an apocalyptic number.

It is an amenable number.

55283242627681 is a deficient number, since it is larger than the sum of its proper divisors (95811512931).

55283242627681 is an equidigital number, since it uses as much as digits as its factorization.

55283242627681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95811512930.

The product of its digits is 77414400, while the sum is 61.

The spelling of 55283242627681 in words is "fifty-five trillion, two hundred eighty-three billion, two hundred forty-two million, six hundred twenty-seven thousand, six hundred eighty-one".